Year	current US$
1992	3100000000
1993	4150000000
1994	3005042016.8067226
1995	2844649021.864212
1996	2869307692.3076925
1997	3196070878.274268
1998	3392629525.254715
1999	2652579221.821099
2000	3007265171.7983046
2001	2572625899.2805753
2002	2843008062.895048
2003	3830748755.648939
2004	5940534935.609603
2005	8225246306.562294
2006	10836162196.441227
2007	13431372549.019608
2008	19147725145.103912
2009	14087037468.000929
2010	16215826033.822289
2011	23374663040.26631
2012	25211349542.395855
2013	26671674145.978916
2014	26337770561.712032
2015	18179089651.569542
2016	14239307827.899897
2017	16357870397.683226
2018	18433869517.591213
2019	18803575705.510563
2020	18902472766.7729
2021	22513318955.75448
2022	21645824606.83142
2023	19545513491.944733